dt-bindings: interrupt-controller: qcom-pdc: document support for SA8255p

Add compatible for pdc interrupt controller representing support on
SA8255p.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Link: https://lore.kernel.org/r/20240905191510.3775179-1-quic_nkela@quicinc.comSigned-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml

@@ -27,6 +27,7 @@ properties:
     items:
       - enum:
           - qcom,qdu1000-pdc
+          - qcom,sa8255p-pdc
           - qcom,sa8775p-pdc
           - qcom,sc7180-pdc
           - qcom,sc7280-pdc